Propelling device for balloons and flying-machines.



K. BUGHBERGER.

PROPELLING DEVICE FOR BALLOONS AND FLYING MACHINES; APPLIUATION FILED APR. 24, 1908.

907,312. Patented Dec. 22, 1908 2' SHEETS-SHEET 1.

wi/lmwwm A I glvwc vvroz K. BUUHBERGER.

PROPELLING DEVICE FOR BALLOONS AND FLYING MACHINES. APBLIOATION I'IIJED APR. 24, 1908.

907,31 2. Patented Dec. 22, 1908.

2 SHEETS-SHEET 2.

1, 3p wuawtoz fwd.

ffzl'oz-nera of wings 2, 2' and 3, 3, the wings of each UNITED STATES 'KARL BUCHBERGER, or ALBANY, NEW YORK.

PATENT OFFICE,

rnorrinnme nnvrcn is-on BALLOONS mm rmrnm-nuimm:s.

Specification of Application filed April 24,

To alt whom it may concern:

Be it known that I, KARL Boonnnnenmai subject of the Emperor of Austria- Hungary, aiid a resident of Albany, county of Albany, State of New York, have invented.

certain new and useful Improvements in lropelling Devices for Balloons and Flying? Machines, of which the following is a speci fication.

The present invention perta'in's .to propel-L ling apparatus for balloons or; flying mamay beeither attached to a balloon or be'a part of the frame of a heavier-than-airma- I chine.

)ropelling device which orms the subject of the present application.

The propelling device consists of two pairs pair being arranged crosswise to each other, and by a ends of a rotary shaft '5 journaleii in the frame 1.

Rigidlyand centrally secured to the-frame 1 are ring shaped brackets 6,- '6' between -Wli-icha hollow cylinder7 is'arranged. -By

means of pins or projections 8 engaging annular grooves 9 in the inner surfaces of the brackets-(6, 6, this cylinder is carried by the latter so as to be capable of turning around its longitudinal axis. The shaftJ is sup-- ported in the brackets 6 by ball bearin 10 :and loosely extends through the cylin er 7.,

the in ner diameter of which is larger than the diameter of the shaft.

.Slidably. borne in longitudinal opposite ends of which chains, 12 are attached which engage around and are adapted by the reciprocating movement, of the bars 11, 11 to drive sprocket wheels13 keyed to the spindies 4: of the wings.

The bars 11, 11 are eachprovided with a projection 14 which are engaged in a cam Letters. latezit.

This frame is ada ted to carry the spindle 4 are loosely carried by the of the 'shaft 5 are bars 11, 11, to the .PatentedDec. 22, 1908.

i908. Bedouin, 429,024.

"shaped groove 15 provided in the inner surat. the rotation of the shaft 5, the bars 11, 11 are caused to reciprocate in lon itudinal and a reversed'direction to one anot ier. By this reciprocating movement the wings are swung upon themselves while simultaneously revolving with the shaft 5, so that the wings ercise a propelling action.

If it is desired to change around te cylinder 7 so -as to changeits pr sition. Normally the cylinder- 7 is secured in er. Afterslackening this set screw the itself.

'18 denotes ball bearings provided in the projection in the cam groove. f The shaft 1- may carrya' pulley 1.9 for the transmission of movement thereto from a motor suitably arranged on the frame 1 What I claim and desire to secure by Letters Patent is: ,1. The hereindescribed propelling device, comprisinga frame, a rotary shaft therein a pairjofwin'gs rotatively borne on each en arran edcrosswise to one another and'adapted to 'be swung-perpendicularly to the said shaft, two diametrically opposed bars longitudinally and slidably borne in said shaft, a sprocket wheel in the center of each pair of wings, a chain engaging around said sprocket wheel and havin its ends secured cylinder 'rotatively carriedyby said frame and embracing the shaft, said cylinder hava spiral groove containing afba'll hear-- ing ing, pro ections on said slidable bars en gaging said groove, said bars at the rotation of the shaft being caused to reciprocate in a by. impart a swinging movement to 1 the wings, substantially as set forth.

2. The herein described propelling device, comprising a frame, a rotary shaft therein said shaft, the wings of each pair'being arranged crosswise to one another and adaptof each pair are caused to 'intermittently'e'xthe position and- --the direction of the swinging movement of.

the win s, all that is necessary is to turn inposition by a setscrew 16 working'in a projection 17 ofone of the brackets 6 and 'en aging notches in the surface .ofthe cylylinder is released and can be turned upon,

cam groove to afford easy movement of the i I Y of said shaft, the wings of each pair being to the -ends of. the opposite bars, a hollow .reverse direction to one another and to there 'afpair of wings rotativelyborne on each en 0 ed to be swungperpendicularly to the saidfaceof the cylinder 7 and owing to which,

a sprocketfwheel-in the center of each pair verse direction to one another and to thereby imgart a swinging movement to the Wings, an means for the adjustment of the cyl- 15 shaft, two diztnietricaliy jopposed ba'rslon-Q gitudinally and slidably bornein said shaft,

of 'Wings,. a chain v engaging around said in der to allow a changein the direction of sprocket Wheel and having ts endssecured .the swinging movement of the Wings, subto the ends, of the opposite bars, a hollow stantially as set forth.

cylinderv rotatively carried by said frame Signedat New York this 23 day of April,

and embracing the shaft, said vcylinder hav- 1908.

ing a spiral groove containing a ball bear. KARL BUCHBERGER.

ing, projections on said slidable bars engag 'VVitnesses;

I ingsaid groove, said'xbars at the rotation of JOHN T. CARMonY, the shaftfbelng caused to reciprocate in a re- MAX D. ORDMANN. I 

